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-rw-r--r--lib/ssl/src/ssl_cipher.erl41
-rw-r--r--lib/ssl/src/ssl_record.erl2
-rw-r--r--lib/ssl/src/ssl_record.hrl3
3 files changed, 27 insertions, 19 deletions
diff --git a/lib/ssl/src/ssl_cipher.erl b/lib/ssl/src/ssl_cipher.erl
index d43d312be8..3837628347 100644
--- a/lib/ssl/src/ssl_cipher.erl
+++ b/lib/ssl/src/ssl_cipher.erl
@@ -32,7 +32,7 @@
-include_lib("public_key/include/public_key.hrl").
-export([security_parameters/2, suite_definition/1,
- decipher/5, cipher/4,
+ decipher/5, cipher/5,
suite/1, suites/1, anonymous_suites/0,
openssl_suite/1, openssl_suite_name/1, filter/2]).
@@ -59,16 +59,16 @@ security_parameters(CipherSuite, SecParams) ->
hash_size = hash_size(Hash)}.
%%--------------------------------------------------------------------
--spec cipher(cipher_enum(), #cipher_state{}, binary(), binary()) ->
+-spec cipher(cipher_enum(), #cipher_state{}, binary(), binary(), tls_version()) ->
{binary(), #cipher_state{}}.
%%
%% Description: Encrypts the data and the MAC using chipher described
%% by cipher_enum() and updating the cipher state
%%-------------------------------------------------------------------
-cipher(?NULL, CipherState, <<>>, Fragment) ->
+cipher(?NULL, CipherState, <<>>, Fragment, _Version) ->
GenStreamCipherList = [Fragment, <<>>],
{GenStreamCipherList, CipherState};
-cipher(?RC4, CipherState, Mac, Fragment) ->
+cipher(?RC4, CipherState, Mac, Fragment, _Version) ->
State0 = case CipherState#cipher_state.state of
undefined -> crypto:rc4_set_key(CipherState#cipher_state.key);
S -> S
@@ -76,30 +76,34 @@ cipher(?RC4, CipherState, Mac, Fragment) ->
GenStreamCipherList = [Fragment, Mac],
{State1, T} = crypto:rc4_encrypt_with_state(State0, GenStreamCipherList),
{T, CipherState#cipher_state{state = State1}};
-cipher(?DES, CipherState, Mac, Fragment) ->
+cipher(?DES, CipherState, Mac, Fragment, Version) ->
block_cipher(fun(Key, IV, T) ->
crypto:des_cbc_encrypt(Key, IV, T)
- end, block_size(des_cbc), CipherState, Mac, Fragment);
-cipher(?'3DES', CipherState, Mac, Fragment) ->
+ end, block_size(des_cbc), CipherState, Mac, Fragment, Version);
+cipher(?'3DES', CipherState, Mac, Fragment, Version) ->
block_cipher(fun(<<K1:8/binary, K2:8/binary, K3:8/binary>>, IV, T) ->
crypto:des3_cbc_encrypt(K1, K2, K3, IV, T)
- end, block_size(des_cbc), CipherState, Mac, Fragment);
-cipher(?AES, CipherState, Mac, Fragment) ->
+ end, block_size(des_cbc), CipherState, Mac, Fragment, Version);
+cipher(?AES, CipherState, Mac, Fragment, Version) ->
block_cipher(fun(Key, IV, T) when byte_size(Key) =:= 16 ->
crypto:aes_cbc_128_encrypt(Key, IV, T);
(Key, IV, T) when byte_size(Key) =:= 32 ->
crypto:aes_cbc_256_encrypt(Key, IV, T)
- end, block_size(aes_128_cbc), CipherState, Mac, Fragment).
+ end, block_size(aes_128_cbc), CipherState, Mac, Fragment, Version).
%% cipher(?IDEA, CipherState, Mac, Fragment) ->
%% block_cipher(fun(Key, IV, T) ->
%% crypto:idea_cbc_encrypt(Key, IV, T)
%% end, block_size(idea_cbc), CipherState, Mac, Fragment);
-block_cipher(Fun, BlockSz, #cipher_state{key=Key, iv=IV} = CS0,
- Mac, Fragment) ->
+build_cipher_block(BlockSz, Mac, Fragment) ->
TotSz = byte_size(Mac) + erlang:iolist_size(Fragment) + 1,
{PaddingLength, Padding} = get_padding(TotSz, BlockSz),
- L = [Fragment, Mac, PaddingLength, Padding],
+ [Fragment, Mac, PaddingLength, Padding].
+
+block_cipher(Fun, BlockSz, #cipher_state{key=Key, iv=IV} = CS0,
+ Mac, Fragment, {3, N})
+ when N == 0; N == 1 ->
+ L = build_cipher_block(BlockSz, Mac, Fragment),
T = Fun(Key, IV, L),
NextIV = next_iv(T, IV),
{T, CS0#cipher_state{iv=NextIV}}.
@@ -156,10 +160,11 @@ block_decipher(Fun, #cipher_state{key=Key, iv=IV} = CipherState0,
HashSz, Fragment, Version) ->
try
Text = Fun(Key, IV, Fragment),
- GBC = generic_block_cipher_from_bin(Text, HashSz),
+ NextIV = next_iv(Fragment, IV),
+ GBC = generic_block_cipher_from_bin(Version, Text, NextIV, HashSz),
Content = GBC#generic_block_cipher.content,
Mac = GBC#generic_block_cipher.mac,
- CipherState1 = CipherState0#cipher_state{iv=next_iv(Fragment, IV)},
+ CipherState1 = CipherState0#cipher_state{iv=GBC#generic_block_cipher.next_iv},
case is_correct_padding(GBC, Version) of
true ->
{Content, Mac, CipherState1};
@@ -525,7 +530,8 @@ hash_size(sha) ->
%% We return the original (possibly invalid) PadLength in any case.
%% An invalid PadLength will be caught by is_correct_padding/2
%%
-generic_block_cipher_from_bin(T, HashSize) ->
+generic_block_cipher_from_bin({3, N}, T, IV, HashSize)
+ when N == 0; N == 1 ->
Sz1 = byte_size(T) - 1,
<<_:Sz1/binary, ?BYTE(PadLength0)>> = T,
PadLength = if
@@ -536,7 +542,8 @@ generic_block_cipher_from_bin(T, HashSize) ->
<<Content:CompressedLength/binary, Mac:HashSize/binary,
Padding:PadLength/binary, ?BYTE(PadLength0)>> = T,
#generic_block_cipher{content=Content, mac=Mac,
- padding=Padding, padding_length=PadLength0}.
+ padding=Padding, padding_length=PadLength0,
+ next_iv = IV}.
generic_stream_cipher_from_bin(T, HashSz) ->
Sz = byte_size(T),
diff --git a/lib/ssl/src/ssl_record.erl b/lib/ssl/src/ssl_record.erl
index 830026c825..f9ccaea0e3 100644
--- a/lib/ssl/src/ssl_record.erl
+++ b/lib/ssl/src/ssl_record.erl
@@ -633,7 +633,7 @@ cipher(Type, Version, Fragment, CS0) ->
BCA}
}} =
hash_and_bump_seqno(CS0, Type, Version, Length, Fragment),
- {Ciphered, CipherS1} = ssl_cipher:cipher(BCA, CipherS0, MacHash, Fragment),
+ {Ciphered, CipherS1} = ssl_cipher:cipher(BCA, CipherS0, MacHash, Fragment, Version),
CS2 = CS1#connection_state{cipher_state=CipherS1},
{Ciphered, CS2}.
diff --git a/lib/ssl/src/ssl_record.hrl b/lib/ssl/src/ssl_record.hrl
index 282d642138..3d22fa6acb 100644
--- a/lib/ssl/src/ssl_record.hrl
+++ b/lib/ssl/src/ssl_record.hrl
@@ -176,7 +176,8 @@
content, % opaque content[TLSCompressed.length];
mac, % opaque MAC[CipherSpec.hash_size];
padding, % unit 8 padding[GenericBlockCipher.padding_length];
- padding_length % uint8 padding_length;
+ padding_length, % uint8 padding_length;
+ next_iv % opaque IV[SecurityParameters.record_iv_length];
}).
-endif. % -ifdef(ssl_record).
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 08:41:38 +0000